The medieval woodcut-style artwork chronicles life in medieval London.

An architectural oddity hides in plain sight on this iconic London bridge.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Once a train station along the Great Eastern Railway this vibrant coffee shop and bar is where members of London’s creative class mingle.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A hands-off space for graffiti artists to hone and display their skills.

Stalinist skyscraper built with help of cryotechnology.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

The place where Czar Peter I of Russia resided in 1697 during his Grand Embassy.

Colorful and chaotic stacked hotel in North Holland.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

A public urinal so pretty, it was declared a national monument.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

This demon atop the Notre-Dame de Paris looks utterly bored.

The celebrated eyesore created by starry-eyed sweethearts.